Summer Squash Soup

I opted to add heavy cream and cheese to this recipe but it was still pretty bland. It needs some spice or something more to make it good.

Ingredients

2 large sweet onions, chopped

1 medium leek (white portion only), chopped

2 tablespoons olive oil

6 garlic cloves, minced

6 medium yellow summer squash, seeded and cubed (about 6 cups)

4 cups reduced-sodium chicken broth

4 fresh thyme sprigs

1/4 teaspoon salt

2 tablespoons lemon juice

1/8 teaspoon hot pepper sauce

1 tablespoon shredded Parmesan cheese

2 teaspoons grated lemon peel

Directions

In a large saucepan, saute onions and leek in oil until tender. Add garlic; cook 1 minute longer. Add squash; saute 5 minutes. Stir in the broth, thyme and salt. Bring to a boil. Reduce heat; cover and simmer for 15-20 minutes or until squash is tender.